Caster.



M. F. HILL.

EASTER.

APPLICATION FILED AUG. 8, 1912.

COLUMBIA PLANOORAPII co.. WASHINGTON, D. c.

UNITED ST -TE$ PATENT OFFICE.

MYRON F. KILL, OF NEW ROCHELLE. NEW YORK, ASSIGNOR TO THE M. B. SCHENCKCO., A CORPORATION OF CONNECTICUT.

(EASTER.

Specification of Letters Patent.

Patented Aug. 19, 913.

Application filed August 8, 1912. Serial No. 714,009.

To all whom it may concern:

Be it known that I, Mruon F. HILL, a citizen of the United States, andresident of New Rochelle. in the county of \Yestchester and State of NewYork. have invented certain new and useful Improvements in Casters. ofwhich the following a specificatiOn.

My invention relates to casters which are provided with wheels, hornsand pintles, and are adapted to be secured to hollow. tubular legs suchas are used with metallic beds.

My invention relates particularly to a separate leg mount not secured tothe caster, but adapted to be associated therewith and sold inconnection with a caster of the standard type.

Legs having headings or ornaments cast thereon or driven upon them byforce and thereby frictionally secured to the less have been commonlyused in the art. Iasters having headings, or, as they are termedtechnically. leg mounts formed as a part of the caster have also beencommonly used in the art. My invention therefore dilfers from theseforms of casters and mounts by having}; a 1c; mount. which is notsecured thereto and may be sold with the caster but apart therefrom.

Figure 1 shows partly in vertical section one form of my invention.Fig". 2 shows an outside elevation thereof. Fig. 3 shows the same asapplied to a ball or roller bearing casting. Fig. 4 shows an outsideview thereof.

In Fig. 1 is shown a wheel 1 in a horn 2 which is secured to a pintle 3adapted to be secured to the hollow metallic leg *1. Upon the pintle issecured a supporting disk 5 upon which the bottom of the leg rests. Thesupporting disk is secured to the pintlc at (i and centered upon thepintle at that point. The supporting disk and pintle are secured to theleg 4 by resilient or spring arms 7 engaging the inside of the leg at 8.These spring arms are extended upwardly from the bottom where the springpart. surrounds and engages the pintle at 6 and thence passes throughthe apertures 9. After engaging the leg at the points 8 these arms areinclined inwardly at 10 to provide inclined faces for engaging thebottom of the leg when inserted and the upper ends of these spring arms11 when the caster is withdrawn from the leg engage the frame 12,

which is preferably secured to the pintlc. so that the pintle mayrevolve there-int Upon the pintlc at (l is also mounted a secondary diskwhich is distinguished from the supporting disk mainly by the fact thatit does not support the leg. the supporting disk which supports the legresting upon the shoulder 13. The secondary disk 1t is provided with aflange 15 which is adapted to engage the bottom of the leg mount 16 toprevent. it from dropping off from the leg. The leg mount is notcentered upon the nonsupporting disk 5, but is centered upon theexterior of the leg 4 which it engages by a down-turned portion 17. Thisportion may be slitted to form downwardly extendinla; spring armsadapted to grip the exterior of the leg and secure the leg mount theretoand center it thereon. ii

The supporting disk 5 is larger than the inside diameter of the leg rand smaller than its outside diameter. The leg mount 16 at its bottom isextended inwardly so that the hole in the bottom extends tinder the edgeof the leg 4. This is for the purpose of preventing: the leg mount frombeing accidentally displaced from its correct position. upwardly. It isprevented from being accidentally displaced downwardly by enr'aging thesecondary disk 15 which should have an outside diameter larger than thehole in the bottom of the leg mount. These portions may be shaped in anysuitable manner to accomplish these results. The leg mount is firstapplied to the leg and the caster is then inserted in the leg. In thisway the leg mount is never secured to the caster, nor is it centeredthereon, but is secured to the leg when mounted thereon. It may be soldseparately from the caster. It may be used with any caster, butpreferably with a caster that has the features just described.

In Fig. 2 is shown a side elevation of this construction. The leg 1 hassurrounding it at its base the leg mount 16 and the flange 15 is adaptedto prevent the leg mount from dropping off from the leg, though it. isnot essential that the leg mount should engage the flange 15.

In Fig. 3 is shown a modification of this construction in which thesecondary disk as shown at 18 becomes one of the members of ananti-friction bearing. Between this secondary disk and the top of thehorn 19 are located balls or rolling devices 20 furnishing ananti-friction support for the leg upon the horn. The leg mount 21 ismounted upon the leg 22 by means of the downwardly turned portion 23which may be slitted to form spring arms to frictionally and resilientlyengage the exterior of the leg and to center the leg mount thereon. Thebottom of the leg mount 21 has a hole in it which is sutiiciently largeto pass over the supporting disk 25 and sufficiently small not to passover the bottom edge of the leg in case of any tendency to be displacedupwardly. The supporting disk 25 preferably has an outside diametersmaller than the exterior of the leg 22 and larger than the hole withinit. To prevent any downward displacement of the leg mount 21 it engagesthe secondary disk 18. The leg mount and caster are sold separately. Theleg mount is first applied to the leg and then the caster is inserted inthe leg. The leg mount is never secured to the caster; but when appliedthereto, is secured to the leg.

In Fig. 4 is shown an external view of this construction in which theleg 22 is provided with the leg mount 21 mounted above the flange 24 asshown.

hat is claimed is 1. In a caster for a hollow metallic leg, incombination. a yoke, a pintle, and a leg supporting disk carryingfrictional means adapted to engage varying sizes of legs, a separatesecondary disk centered with respect to the pintle, having means tosupport a leg mount andv a leg mount carrying frictional means adaptedto engage said leg for securing purposes, said leg mount centered uponsaid leg and adapted to engage the means upon said secondary disk toprevent its being pushed off, said leg mount surrounding and concealingthe bottom of said leg.

2. In a caster for a hollow metallic leg, in combination, a yoke, apintle. and a leg supporting disk carrying frictional means adapted toengage Varyin sizes of legs, a separate secondary disk centered withrespect to the pintle, having means to support a leg mount and a legmount carrying frictional means consisting of spring arms adapted toengage the exterior of said leg for securing purposes, said leg mountcentered upon said leg and adapted to engage the means upon saidsecondary disk to prevent its being pushed otf said leg surround ing andconcealing the bottom of said leg.

3. In caster for a hollow metallic leg, in combination a yoke, a pintle,and a leg supporting disk carrying frictional means adapted to engagevarying sizes of legs, a separate secondary disk centered with respectto the pintle, having means to supporta leg mount, and a leg mountcarrying frictional means consisting of downwardly depending spring armsadapted to engage the exterior of said leg for securing purposes saidleg mount centered upon said leg and adapted to engage the means uponsaid secondary disk to prevent its being pushed off, said leg mountsurrounding and con cealing the bottom of said leg.

4. In a caster for a hollow metallic leg, in combination, a yoke, apintle, and a leg supporting disk carrying frictional means adapted toengage varying sizes of legs, a separate secondary disk centered withrespect to the pintle, having means to support a leg mount, and a legmount carrying frictional means consisting of spring arms adapted toengage the exterior of said leg for securing purposes, said leg mountcen tered upon said leg and adapted to engage the means upon saidsecondary disk to prevent its being pushed off, said leg mountsurrounding and concealing the bottom of said leg, an anti-frictionrolling bearing carried by said caster engaging said secondary disk.

5. In a caster for a hollow metallic leg, in combination, a yoke, apintle, and a leg supporting disk carrying frictional means adapted toengage varying sizes of legs, a separate secondary disk centered withrespect to the pintle, having means to support a leg mount, and a legmount carrying frictional means consisting of downwardly dependingspring arms adapted to engage the exterior of said leg for securingpurposes, said leg mount centered upon said leg and adapted to engagethe means upon said secondary disk to prevent its being pushed off, saidleg mount surrounding and concealing the bottom of said leg, anantifriction rolling bearing carried by said caster engaging saidsecondary disk.

6. In a caster for a hollow metallic leg, in combination, a yoke, apintle, and a leg supporting disk carrying frictional means adapted toengage varying sizes of legs, a separate secondary disk centered withrespect to the pintle, and a leg mountcarrying frictional means adaptedto engage said leg for securing purposes, said leg mount having a holein its bottom smaller than the exterior of the leg and larger than thesupporting disk.

7. In a caster for a hollow metallic leg, in combination, a yoke, apintle, and a leg supporting disk carrying frictional means adapted toengage varying sizes of legs, a separate secondary disk centered withrespect to the pintle, and a leg mount carrying frictional means adaptedto engage said leg for securing purposes, said leg mount having a holein its bottom smaller than the exterior of the leg and larger than thesupporting disk and smaller than the secondary disk.

8. In a caster for a hollow metallic leg, in

combination, a yoke, a pintle, and a leg supporting disk carryingfrictional means adapted to engage varying sizes of legs, a separatesecondary disk centered With respect to the pintle, and a leg mountcarrying frictional means consisting of downwardly depending spring armsadapted to engage the exterior of said leg for securing purposes, saidleg mount having a hole in its bottom smaller than the exterior of theleg and larger than the supporting disk and smaller than the secondarydisk.

5). In a caster for a hollow metallic leg, in combination, yoke, apintle, and a leg supporting disk carrying frictional means for engagingvarying sizes of legs, a separate secondary disk centered with respectto the pintle, and a leg mount carrying frictional mean s adapted toengage said leg for securing p1;rposes and carrying means to prevent itsbeing pushed up too far on the leg, and means adapted to engage thesecondary disk to prevent its being pushed off the leg downwardly.

Signed at New York city in the county of New York and State of New York1912.

MYRON F. HILL. Vitnesses LOUISE R. lVILLS, LAURA E. SMITH.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. G.

